Commit Graph

39 Commits

Author SHA1 Message Date
teor 6ad445eb97
1. fix(perf): Run CPU-intensive state updates in parallel rayon threads (#4802)
* Split disk reads from CPU-heavy Sprout interstitial tree cryptography

* Improve anchor validation debugging and error messages

* Work around a test data bug, and save some CPU

* Remove redundant checks for empty shielded data

* Skip generating unused interstitial treestates

* Do disk fetches and quick checks, then CPU-heavy cryptography

* Wrap HistoryTree in an Arc in the state

* Run CPU-intensive chain validation and updates in parallel rayon threads

* Refactor to prepare for parallel tree root calculations

* Run finalized state note commitment tree root updates in parallel rayon threads

* Update finalized state note commitment trees using parallel rayon threads

* Fix a comment typo and add a TODO

* Split sprout treestate fetch into its own function

* Move parallel note commitment trees to zebra-chain

* Re-calculate the tree roots in the same parallel batches

* Do non-finalized note commitment tree updates in parallel threads

* Update comments about note commitment tree rebuilds

* Do post-fork tree updates in parallel threads

* Add a TODO for parallel tree updates in tests

* Fix broken intra-doc links

* Clarify documentation for sprout treestates

* Sort Cargo.toml dependencies
2022-07-22 12:19:11 -04:00
Alfredo Garcia 97fb85dca9
lint(clippy): add `unwrap_in_result` lint (#4667)
* `unwrap_in_result` in zebra-chain crate

* `unwrap_in_result` in zebra-script crate

* `unwrap_in_result` in zebra-state crate

* `unwrap_in_result` in zebra-consensus crate

* `unwrap_in_result` in zebra-test crate

* `unwrap_in_result` in zebra-network crate

* `unwrap_in_result` in zebra-rpc crate

* `unwrap_in_result` in zebrad crate

* rustfmt

* revert `?` and add exceptions

* explain some panics better

* move some lint positions

* replace a panic with error

* Fix rustfmt?

Co-authored-by: teor <teor@riseup.net>
2022-06-28 06:22:07 +00:00
teor 3825caae03
fix(clippy): Resolve some lifetime and reference lints (#4578)
* Fix significant drop in match scrutinee

https://github.com/rust-lang/rust/issues/93883

* Fix deref immutable value

* Fix explicit 0 index when first() would do

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-06-14 06:21:07 +00:00
Marek b8b35f8da9
fix(doc): Fix various doc warnings, part 1 (#4514)
* Fix the syntax of links in comments

* Fix a mistake in the docs

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>

* Remove unnecessary angle brackets from a link

* Revert the changes for links that serve as references

* Revert "Revert the changes for links that serve as references"

This reverts commit 8b091aa9fab453e7d3559a5d474e0879183b9bfb.

* Remove `<` `>` from links that serve as references

This reverts commit 046ef25620ae1a2140760ae7ea379deecb4b583c.

* Don't use `<` `>` in normal comments

* Don't use `<` `>` for normal comments

* Revert changes for comments starting with `//`

* Fix some warnings produced by `cargo doc`

* Fix some rustdoc warnings

* Fix some warnings

* Refactor some changes

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
2022-06-02 15:07:35 +00:00
Marek 6f896ef5a5
fix(doc): Fix the syntax of links in comments (#4494)
* Fix the syntax of links in comments

* Fix a mistake in the docs

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>

* Remove unnecessary angle brackets from a link

* Revert the changes for links that serve as references

* Revert "Revert the changes for links that serve as references"

This reverts commit 8b091aa9fab453e7d3559a5d474e0879183b9bfb.

* Remove `<` `>` from links that serve as references

This reverts commit 046ef25620ae1a2140760ae7ea379deecb4b583c.

* Don't use `<` `>` in normal comments

* Don't use `<` `>` for normal comments

* Revert changes for comments starting with `//`

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
2022-05-30 20:12:11 +00:00
teor be91ab29ee
fix(clippy): resolve various clippy warnings (#4473)
* clippy: unused import on non-linux platforms

* Fix some instances of clippy::derive_partial_eq_without_eq

* Move a deref to fix clippy::significant_drop_in_scrutinee

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-05-25 20:56:32 +00:00
Conrado Gouvea 55822dda41
change: NU5 mainnet dependency upgrades (#4405)
* upgrade dependencies to NU5 mainnet versions

* migrate to bitvec 1.0

* update deny.toml

* point to published redjubjub 0.5

* Point at zcash-script@0.1.6 on crates.io

* update Cargo.lock

* specify patch versions of dependencies

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
2022-05-19 01:03:55 +00:00
Marek 7c726b246d
feat(rpc): Implement `z_gettreestate` RPC (#3990)
* Impl the elementary structure of the `z_gettreestate` RPC

* Fix merging bugs

* Fix a merge bug

* Fix a merge bug

* Move a derive attribute

Co-authored-by: teor <teor@riseup.net>

* Clarify the support of negative heights

* Add Orchard note commitment trees to the response

* Add the time to the response

* Finalize the `z_gettreestate` RPC

* Add a note that verified blocks have coinbase height

* Refactor `from_str` for `HashOrHeight`

* Fix a mistake in the docs

Co-authored-by: teor <teor@riseup.net>

* Clarify request types

Co-authored-by: teor <teor@riseup.net>

* Simplify `hash_or_height` conversion to height

Co-authored-by: teor <teor@riseup.net>

* Add a TODO about optimization

Co-authored-by: teor <teor@riseup.net>

* Add a doc comment

* Make sure Sapling & Orchard trees don't get mixed up

* Serialize Sapling commitment trees

* Refactor some comments

* Serialize Orchard commitment trees

* Serialize block heights

* Simplify the serialization of commitment trees

* Remove the block time from the RPC response

* Simplify the serialization of block heights

* Put Sapling & Orchard requests together

* Remove a redundant TODO

* Add block times to the RPC response

* Derive `Clone, Debug, Eq, PartialEq` for `GetTreestate`

Co-authored-by: teor <teor@riseup.net>

* Derive `Clone`, `Debug`, `Eq` and `PartialEq` for `SerializedTree`

* Document the fields of `GetTreestate`

* Skip the serialization of empty trees

This ensures compatibility with `zcashd` in the `z_gettreestate` RPC.

* Document the `impl` of `merkle_tree::Hashable` for nodes

* Make the structure of the JSON response consistent with `zcashd`

* Derive `Eq` for nodes

Co-authored-by: teor <teor@riseup.net>

* Convert Sapling commitment trees to a format compatible with zcashd

* Refactor the conversion of Sapling commitment trees

* Refactor some comments

* Refactor comments

* Add a description of the conversion

Co-authored-by: Conrado Gouvea <conrado@zfnd.org>

* Fix comment indenting

* Document the conversion between the dense and sparse formats

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
2022-05-12 07:00:12 +00:00
teor 3291db35c0
fix(shielded): use RwLock for note commitment tree root caches (#3809)
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-03-09 23:26:49 +00:00
Alfredo Garcia 137ae4e041
refactor(anchorSapling): Change type to force consensus rule validation (#3544)
* change `anchorSapling` type

* implement PartialEq manually for clippy

* use `unique_by` in place of `sorted`

* replace panic with new error

* improve some serialize/deserialize calls for sapling anchors

* fix arbitrary for sapling::tree::Root

* remove dedup()

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-02-17 03:20:22 +00:00
Marek ece2d0f09b
Document the consensus rules for note commitment trees (#3319)
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-01-14 01:28:35 +00:00
Deirdre Connolly e6ffe374d4
Validate sapling, orchard anchors (#3084)
* Add Transaction::sprout_joinsplits()

* Add Anchor variants to ValidateContextError

* Make Chain anchor collections pub(crate)

* tracing::instrument several methods in state

* Add contains_*_anchors methods to FinalizedState

* Add check::anchors module and function

* Verify that anchors_refer_to_earlier_treestates in when updating chains in non-finalized state

* Update zebra-state/src/service/check/anchors.rs

Co-authored-by: teor <teor@riseup.net>

* Add anchors() to sapling::ShieldedData

* Add sapling_anchors() to Transaction

* Use Transaction::sapling_anchors() in the anchors_refer_to_earlier_treestates() check

* Whoops, itertools

* Add a comment for improvement

Co-authored-by: teor <teor@riseup.net>

* Add & use a cfg(test) method on FinalizedState to prep test state with anchors to allow other tests to pass contextual checks

* Allow test nullifier checks to pass by populating anchor sets, allowing test anchor checks to pass

* Add mainnet block 419202 and its sapling note commitment tree root to test vectors

* Test sapling anchor verification using the first few Sapling blocks data

* Correct comment

* assert_eq instead of assert(bool)

Co-authored-by: Conrado Gouvea <conrado@zfnd.org>

* Update zebra-state/src/service/non_finalized_state.rs

Co-authored-by: teor <teor@riseup.net>

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Marek <mail@marek.onl>
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
2021-11-30 16:05:35 +00:00
Janito Vaqueiro Ferreira Filho 339fefb6e6
Update shared NU5 dependencies, set the NU5 testnet activation network upgrade parameters (#2825)
* Check return value of zcash_script_new_precomputed_tx

* Set the NU5 testnet activation height to 1_590_000

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* Update Nu5 constants to new values

* Update ZIP-244 test vectors for new branch ID

* Squashed commit of the following:

commit bdb120a249e3e889a913114a712505defdade1d4
Author: Deirdre Connolly <durumcrustulum@gmail.com>
Date:   Tue Oct 5 11:54:01 2021 -0400

    Use pallas::Base::from_str_vartime() in sinsemilla tests

commit e99fa4925857840fa65ccfb4a076ec412e416576
Author: Deirdre Connolly <durumcrustulum@gmail.com>
Date:   Tue Oct 5 11:45:24 2021 -0400

    Compiles

commit a5200181146bfd2aa1e09abea2caaa7a7ceb006e
Author: Deirdre Connolly <durumcrustulum@gmail.com>
Date:   Tue Oct 5 10:15:17 2021 -0400

    Incomplete upgrade of deps

* Squashed commit of the following:

commit 8d1b76ec5626517817c3a4d9f3950acc90a359df
Author: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Date:   Tue Oct 5 04:02:26 2021 +0000

    Update `zcash_script` to support V5 transactions

    Use a newer version of `zcash_script` that has been updated to support
    V5 transactions.

commit 371233628ae61e0c25d6ba8f31d9dba42823becb
Author: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Date:   Tue Oct 5 03:06:20 2021 +0000

    Update Zcash dependencies

    Update some Zcash crates:

    - `halo2`
    - `incrementalmerkletree' (patch version)
    - `orchard` (patch version)
    - `zcash_history` (patch version)
    - `zcash_note_encryption` (patch version)
    - `zcash_primitives` (patch version)

    And also update the `group` dependency so that the code remains
    compatible.

commit de5cf1ec40c3fc08670fc971cdf3e65e13d9f4c7
Author: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Date:   Tue Oct 5 03:04:13 2021 +0000

    Update error message assertion

    Use the updated message for the expected error variant.

* Update `zcash_script` to support V5 transactions

Use a newer version of `zcash_script` that has been updated to support
V5 transactions.

Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
Co-authored-by: teor <teor@riseup.net>
2021-10-06 11:08:41 +10:00
Conrado Gouvea eac95bdf10
Cache note commitment tree roots (#2584)
* Cache note commitment tree roots

* Add comments to cached root fields

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

Co-authored-by: teor <teor@riseup.net>
2021-08-10 10:33:34 -03:00
teor f09f2a9022
Check remaining transaction value & make value balance signs match the spec (#2566)
* Make Amount arithmetic more generic

To modify generated amounts, we need some extra operations on `Amount`.

We also need to extend existing operations to both `NonNegative` and
`NegativeAllowed` amounts.

* Add a constrain method for ValueBalance

* Derive Eq for ValueBalance

* impl Neg for ValueBalance

* Make some Amount arithmetic expectations explicit

* Explain why we use i128 for multiplication

And expand the overflow error details.

* Expand Amount::sum error details

* Make amount::Error field order consistent

* Rename an amount::Error variant to Constraint, so it's clearer

* Add specific pool variants to ValueBalanceError

* Update coinbase remaining value consensus rule comment

This consensus rule was updated recently to include coinbase transactions,
but Zebra doesn't check block subsidy or miner fees yet.

* Add test methods for modifying transparent values and shielded value balances

* Temporarily set values and value balances to zero in proptests

In both generated chains and proptests that construct their own transactions.

Using zero values reduces value calculation and value check test coverage.
A future change will use non-zero values, and fix them so the check passes.

* Add extra fields to remaining transaction value errors

* Swap the transparent value balance sign to match shielded value balances

This makes the signs of all the chain value pools consistent.

* Use a NonNegative constraint for transparent values

This fix:
* makes the type signature match the consensus rules
* avoids having to write code to handle negative values

* Allocate total generated transaction input value to outputs

If there isn't enough input value for an output, set it to zero.

Temporarily reduce all generated values to avoid overflow.
(We'll remove this workaround when we calculate chain value balances.)

* Consistently use ValueBalanceError for ValueBalances

* Make the value balance signs match the spec

And rename and document methods so their signs are clearer.

* Convert amount::Errors to specific pool ValueBalanceErrors

* Move some error changes to the next PR

* Add extra info to remaining transaction value errors (#2585)

* Distinguish between overflow and negative remaining transaction value errors

And make some error types cloneable.

* Add methods for updating chain value pools (#2586)

* Move amount::test to amount::tests:vectors

* Make ValueBalance traits more consistent with Amount

- implement Add and Sub variants with Result and Assign
- derive Hash

* Clarify some comments and expects

* Create ValueBalance update methods for blocks and transactions

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
2021-08-09 14:22:26 -03:00
Deirdre Connolly e719c46b1b
Track anchors and note commitment trees in zebra-state (#2458)
* Tidy chain Cargo.toml

* Organize imports

* Add method to get note commitments from all Actions in Orchard shielded data

* Add method to get note commitments from all JoinSplits in Sprout JoinSplitData

* Add Request and Response variants for awaiting anchors

* Add anchors and note commitment trees to finalized state db

* Add (From|Into)Disk impls for tree::Roots and stubs for NoteCommitmentTrees

* Track anchors and note commitment trees in Chain

Append note commitments to their trees when doing update_chain_state_with,
then use the resulting Sapling and Orchard roots to pass to history_tree, and add
new roots to the anchor sets.

* Handle errors when appending to note commitment trees

* Add comments explaining why note commitment are not removed from the tree in revert_chain_state_with

* Implementing note commitments in finalized state

* Finish serialization of Orchard tree; remove old tree when updating finalize state

* Add serialization and finalized state updates for Sprout and Sapling trees

* Partially handle trees in non-finalized state. Use Option for trees in Chain

* Rebuild trees when forking; change finalized state tree getters to not require height

* Pass empty trees to tests; use empty trees by default in Chain

* Also rebuild anchor sets when forking

* Use empty tree as default in finalized state tree getters (for now)

* Use HashMultiSet for anchors in order to make pop_root() work correctly

* Reduce DEFAULT_PARTIAL_CHAIN_PROPTEST_CASES and MAX_PARTIAL_CHAIN_BLOCKS

* Reduce DEFAULT_PARTIAL_CHAIN_PROPTEST_CASES and MAX_PARTIAL_CHAIN_BLOCKS even more

* Apply suggestions from code review

* Add comments about order of note commitments and related methods/fields

* Don't use Option for trees

* Set DEFAULT_PARTIAL_CHAIN_PROPTEST_CASES=1 and restore MAX_PARTIAL_CHAIN_BLOCKS

* Remove unneeded anchor set rebuilding in fork()

* Improve proptest formatting

* Add missing comparisons to eq_internal_state

* Renamed sprout::tree::NoteCommitmentTree::hash() to root()

* Improve comments

* Add asserts, add issues to TODOs

* Remove impl Default for Chain since it was only used by tests

* Improve documentation and assertions; add tree serialization tests

* Remove Sprout code, which will be moved to another branch

* Add todo! in Sprout tree append()

* Remove stub request, response *Anchor* handling for now

* Add test for validating Sapling note commitment tree using test blocks

* Increase database version (new columns added for note commitment trees and anchors)

* Update test to make sure the order of sapling_note_commitments() is being tested

* Improve comments and structure of the test

* Improve variable names again

* Rustfmt

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
Co-authored-by: Conrado P. L. Gouvea <conradoplg@gmail.com>
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
Co-authored-by: teor <teor@riseup.net>
2021-07-29 09:37:18 -04:00
Deirdre Connolly 48cf52735c
Calculate incremental note commitment trees (#2407)
* Make sapling::tree::NoteCommitmentTree incrementally updateable

* Make orchard::tree::NoteCommitmentTree incrementally updateable

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* Changed to incrementalmerkletree implementation; update MerkleCRH^Orchard

* Improvements from review; organize file names (vectors.rs -> tree.rs)

Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Conrado P. L. Gouvea <conradoplg@gmail.com>
2021-07-15 13:58:36 +00:00
Conrado Gouvea dd645e7e0c
Add ZIP-0244 TxId Digest support (#2129)
* Add ZIP-0244 TxId Digest support

* Apply suggestions from code review

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
2021-07-06 09:58:22 -03:00
Conrado Gouvea 9688811e35
Update multiple crates to ensure bitvec 0.22.3 is being used (#2351)
* Update multiple crates to ensure bitvec 0.22.3 is being used and avoid package conflicts

* Add documentation to zebra-chain::sapling to indicate that ZIP-216 rules are enforced by jubjub

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
2021-06-23 13:16:22 +10:00
teor c453fbf6f6
Add final sapling root test vectors (#2243)
* Add sapling final root test vectors

Also tidy some formatting and imports

* Doc: final sapling roots can be duplicated

* Reverse the byte order of final sapling root test vectors

This makes the test vectors match the byte order in the block header,
rather than the zcashd RPC responses.

* Ignore pre-sapling block header commitments

Previously, Zebra expected this reserved field to be all zeroes,
but some mainnet and testnet blocks had other values.

* Test structural and semantic validation of the block commitment field

History roots are excluded from these tests, because they require
contextual validation.
2021-06-04 10:31:47 -03:00
Deirdre Connolly 7efc700aca
Merge pull request #1713 from ZcashFoundation/use-groth16-batch-math
Use batch optimizations, load params in groth16::Verifier, verify Spend & Output descriptions in transaction verifier
2021-03-24 12:28:25 -04:00
teor 873127aac1 Replace smart quotes with ascii quotes
Some tools don't deal well with unicode text. And we're not using it
consistently in Zebra anyway.
2021-03-15 03:18:10 -04:00
Alfredo Garcia 128643d81e
Call `zebra_test::init` where needed. (#1227)
* Add missing `zebra_test::init()` to zebra-chain
* Add missing `zebra_test::init()` to zebra-consensus
* Add missing `zebra_test::init()` to zebra-network
* Add missing `zebra_test::init()` to zebra-state
* Add missing `zebra_test::init()` to zebra-test
* Add missing `zebra_test::init()` to zebrad
2020-11-10 10:29:25 +10:00
Alfredo Garcia bcb027ebc5 change canopy.pdf to stable protocol.pdf 2020-10-28 11:34:53 -04:00
Deirdre Connolly 5e18e72522 Add some more human-readable language to the doc comment on merkle_crh_sapling 2020-10-05 23:43:23 -04:00
Deirdre Connolly bb0fe9955b Remove Arbitrary from NoteCommitmentTree 2020-10-05 23:43:23 -04:00
Deirdre Connolly 44af7855e4 Move hex_empty_roots test vectors into the only test that uses them 2020-10-05 23:43:23 -04:00
Deirdre Connolly 98e40aa44f Use VecDeque in places
All unwrap()'s are after checks to make sure we won't be unwrap'ing a None
2020-10-05 23:43:23 -04:00
Deirdre Connolly fea448227f Add comment about where the sapling empty merkle roots come from 2020-10-05 23:43:23 -04:00
Deirdre Connolly 3d45209f05 Sprout NoteCommitmentTree root computation 2020-10-05 23:43:23 -04:00
Deirdre Connolly 06c69913c3 We can accurately compute Sapling note commitment tree roots now 2020-10-05 23:43:23 -04:00
Deirdre Connolly 915372e6a2 Correctly computing empty internal nodes in the Sapling note commitment tree 2020-10-05 23:43:23 -04:00
Deirdre Connolly b93abea34f Incomplete impl of Sapling note commitment merkle tree 2020-10-05 23:43:23 -04:00
Deirdre Connolly 568edb54e6 Add merkle_crh_sprout() and tidy note* things 2020-10-05 23:43:23 -04:00
Jane Lusby 352721bd88
Implement RFC5: State updates `Chain` type (#1069)
* Begin work on RFC5 implementation

* I think this is necessary

* holy shit supertrait implemented via subtrait

* implement most of the chain functions

* change to slightly better name

* implement fork

* fix outpoint handling in Chain struct

* update expect for work

* resolve review comment

* split utxo into two sets

* update the Chain definition

* just a little more

* update comment

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* apply changes from code review

* remove allow attribute in zebra-state/lib.rs

* Update zebra-state/src/memory_state.rs

Co-authored-by: teor <teor@riseup.net>

* merge ChainSet type into MemoryState

* rename state impl types

* Add error messages to asserts

* add module doc comment

* update RFC for utxos

* add missing header

Co-authored-by: teor <teor@riseup.net>
2020-09-24 15:46:04 -07:00
Jane Lusby 0b4e974c9e
export proptest impls for use in downstream crates (#1092)
* export proptest impls for use in downstream crates

* add testjob for disabled feature in zebra-chain

* run rustfmt

* try to fix github actions syntax

* differentiate name

* prove that github action tests zebra-chain build without features

* revert change from last commit now that test is running

* remove accidentally introduced newline

* Update .github/workflows/ci.yml

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
2020-09-23 18:52:52 -07:00
Deirdre Connolly 447398691a Make SaplingNoteCommitmentTree private for now 2020-08-28 04:46:31 -04:00
Deirdre Connolly b467a75e08 Rename tree::*NoteTreeRootHash to tree::Root 2020-08-28 04:46:31 -04:00
Henry de Valence e06f59ee21 chain: extract sapling code to sapling module 2020-08-17 11:46:34 -07:00